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CN-224209051-U - External die matching mechanism

CN224209051UCN 224209051 UCN224209051 UCN 224209051UCN-224209051-U

Abstract

The application relates to an external die matching mechanism, which precisely controls a die stamping frame to move along a linear guide rail through a screw rod nut driving mechanism, combines a positioning component on the die stamping frame with a positioning pit on the die stamping frame, realizes the pre-precise alignment of a die stamping seat and a die stamping seat in a wide space outside a cold header, effectively overcomes the inconvenience of operation caused by space limitation and interference of other parts during the internal die matching, effectively shortens the equipment downtime, improves the die matching precision, and reduces the labor intensity of operators.

Inventors

  • ZHU JUNXIAO

Assignees

  • 宁波天相机械制造有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (7)

  1. 1. An out-of-mold die mechanism for aligning a die holder to be joined with a die holder outside of a cold header, comprising: The die comprises a die changing seat, a screw nut driving mechanism, a die stamping frame, a first positioning pit and a positioning assembly, wherein the screw nut driving mechanism is arranged on the die changing seat, the two linear guide rails are arranged in parallel and fixedly connected to the die changing seat, the die stamping frame is slidably arranged on the two linear guide rails and connected with screw nuts of the screw nut driving mechanism to be driven, the die stamping frame is arranged on the die changing seat, is positioned at one end of the linear guide rails and is opposite to the die stamping frame, the die stamping frame is provided with a first positioning pit for receiving and positioning the die stamping seat, the positioning assembly is arranged on the die stamping frame and is used for fixing the die stamping seat, and hoisting structures which are convenient for hoisting by an external hoisting mechanism are arranged at the tops of the die stamping seat and the die stamping seat.
  2. 2. The out-of-mold die mechanism as claimed in claim 1, wherein the die holder comprises a bottom wall slidably mounted on the linear guide rail, a side wall vertically disposed on the bottom wall, the positioning assembly comprises a bottom plate fixedly connected to a side of the die holder facing away from the die holder, a U-shaped hanger horizontally disposed and fixedly mounted on a top side of the bottom plate and extending in a length direction of the side wall, wherein the U-shaped hanger and the bottom plate cooperate to form a positioning groove, a width of the positioning groove is adapted to a thickness of the side wall, the bottom plate is suspended on the side wall through the positioning groove, and a plate surface of the bottom plate abuts against a side of the side wall facing the die holder.
  3. 3. The out-of-mold die mechanism as claimed in claim 2, wherein a side of said side wall facing away from said base plate is provided with a plurality of reinforcing ribs, a plurality of said reinforcing ribs being arranged at intervals along a length direction of said side wall, said bottom wall, reinforcing ribs and side wall being of an integrally formed structure.
  4. 4. The out-of-mold die mechanism as recited in claim 2, wherein said bottom wall has a plurality of bosses on an upper surface thereof, said bosses being spaced apart along a length of said side walls, and wherein said bosses are positioned below said bottom plate and supported on a bottom surface of said bottom plate when said bottom plate is suspended from said side walls.
  5. 5. The out-of-mold die mechanism according to claim 2, wherein the side walls are respectively provided with limiting blocks at both ends in a length direction thereof, guide blocks are arranged on the bottom plate at positions corresponding to the two limiting blocks, and a guide inclined plane is arranged at a bottom end of each guide block and used for guiding the bottom plate to be inserted between the two limiting blocks in a process that the bottom plate is hung on the side walls.
  6. 6. The out-mold die mechanism as claimed in claim 2, wherein a projection is provided at the other end of the linear guide rail with respect to the die carrier, the projection extends in a longitudinal direction of the side wall, and a thickness of the projection is adapted to a width of the positioning groove, so that the U-shaped hanger can be hung on the projection through the positioning groove.
  7. 7. The out-of-mold die mechanism of claim 1, wherein the die carrier is further provided with a second positioning pit for receiving and positioning the die carrier, and the vertical height of the bottom surface of the second positioning pit is lower than the vertical height of the bottom surface of the first positioning pit.

Description

External die matching mechanism Technical Field The application relates to the technical field of cold header, in particular to an out-mold matching mechanism. Background Cold heading (or cold extrusion) is an important metal plastic forming process and is widely applied to the production of large-batch metal products such as fasteners, automobile parts and the like. In the working process of the cold header, the stamping die (or called male die and male die) and the stamping die (or called female die and female die) need to be precisely matched so as to ensure the product quality and the service life of the die. One set of cold heading die usually comprises a plurality of groups of paired stamping dies and stamping dies, which are respectively arranged on a stamping die holder and a stamping die holder, and then the stamping dies and the stamping dies are integrally arranged in a cold heading machine. In conventional die replacement and adjustment processes, the alignment of the die holder to the die holder is typically performed inside the cold header. An operator needs to hang or push a die holder with a die and a die holder with a die into a cold header, and then the accurate control of the neutralization gap between the die and the die is gradually realized through modes of manual adjustment, test stamping, observation, readjustment and the like. However, the in-machine die-matching process is complicated, repeated adjustment is needed, and the time consumption is long. During this period, the cold header can not produce, and the effective utilization rate of the equipment is low, so that the production efficiency is affected, and the problem is more remarkable especially for the production scene that the die needs to be frequently replaced. Disclosure of utility model In order to solve the problems, the application provides an out-mold die matching mechanism for realizing accurate and rapid pre-alignment of a die holder and a die holder outside a cold header. In order to achieve the above object, the out-mold matching mechanism of the present application is used for aligning a die holder to be matched with a die holder outside a cold header, and comprises: The die comprises a die changing seat, a screw nut driving mechanism, a die frame, a first positioning pit and a positioning assembly, wherein the screw nut driving mechanism is arranged on the die changing seat, the two linear guide rails are arranged in parallel and fixedly connected to the die changing seat, the die frame is slidably arranged on the two linear guide rails and connected with screw nuts of the screw nut driving mechanism to be driven, the die frame is arranged on the die changing seat, is positioned at one end of the linear guide rails and is opposite to the die frame, the die frame is provided with a first positioning pit for receiving and positioning the die frame, the positioning assembly is arranged on the die frame and is used for fixing the die frame, and hoisting structures which are convenient for hoisting by an external hoisting mechanism are arranged at the tops of the die frame and the die frame. The die holder comprises a bottom wall, a side wall and a positioning assembly, wherein the bottom wall is slidably arranged on the linear guide rail, the side wall is vertically arranged on the bottom wall, the positioning assembly comprises a bottom plate and a U-shaped hanging frame, the bottom plate is fixedly connected to one side, away from the die holder, of the die holder, the U-shaped hanging frame is horizontally arranged on the top side of the bottom plate and fixedly arranged on the bottom plate, and extends along the length direction of the side wall, the U-shaped hanging frame and the bottom plate are matched to form a positioning groove, the width of the positioning groove is matched with the thickness of the side wall, the bottom plate is hung on the side wall through the positioning groove, and the plate surface of the bottom plate abuts against one side, facing the die holder, of the side wall. Preferably, a plurality of reinforcing ribs are arranged on one side of the side wall, which is away from the bottom plate, the plurality of reinforcing ribs are arranged at intervals along the length direction of the side wall, and the bottom wall, the reinforcing ribs and the side wall are of an integrated structure. Preferably, the upper surface of the bottom wall is provided with a plurality of bosses, the bosses are arranged at intervals along the length direction of the side wall, and when the bottom plate is hung on the side wall, the bosses are positioned below the bottom plate and supported on the bottom surface of the bottom plate. The side wall is provided with limiting blocks at two ends in the length direction, guide blocks are arranged on the bottom plate at positions corresponding to the two limiting blocks, and guide inclined planes are arranged at the bottom end of each guide block and used for guiding t